Interestingly, that document states that "PUAs are not considered malware." PUA detection and removal also seems to be a separate toggle from general malware p

Interestingly, that document states that "PUAs are not considered malware." PUA detection and removal also seems to be a separate toggle from general malware protection, so running Set-MpPreference -PUAProtection Disabled From an admin powershell session should prevent this behavior. It sounds like a bug/unintentional if it's being flagged on non-enterprise SKUs of Windows, though.